package com.ym.b2b.commons.util;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import org.apache.commons.io.FileUtils;

public class FileUtil extends FileUtils {

    /**
     * 删除文件夹下的 所有文件
     * 
     * @Title: delAllFile
     * @Description: TODO
     * @Param @param path
     * @Param @return
     * @Return boolean
     * @Throws
     */
    public static boolean delAllFile(String path) {
        System.out.println("- 删除指定路径下的所有文件" + path);
        boolean flag = false;
        File file = new File(path);
        if (!file.exists()) {
            return flag;
        }
        if (!file.isDirectory()) {
            return flag;
        }
        String[] tempList = file.list();
        File temp = null;
        for (int i = 0; i < tempList.length; i++) {
            if (path.endsWith(File.separator)) {
                temp = new File(path + tempList[i]);
            } else {
                temp = new File(path + File.separator + tempList[i]);
            }
            if (temp.isFile()) {
                temp.delete();
            }
            if (temp.isDirectory()) {
                delAllFile(path + "/" + tempList[i]);// 先删除文件夹里面的文件
                delFolder(path + "/" + tempList[i]);// 再删除空文件夹
                flag = true;
            }
        }
        return flag;
    }

    /**
     * 删除目录
     * 
     * @Title: delFolder
     * @Description: TODO
     * @Param @param folderPath
     * @Return void
     * @Throws
     */
    public static void delFolder(String folderPath) {
        try {
            delAllFile(folderPath); // 删除完里面所有内容
            String filePath = folderPath;
            filePath = filePath.toString();
            java.io.File myFilePath = new java.io.File(filePath);
            myFilePath.delete(); // 删除空文件夹
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static boolean fileToZip(String sourceFilePath, String zipFilePath, String fileName)
    {
      boolean flag = false;
      File sourceFile = new File(sourceFilePath);
      FileInputStream fis = null;
      BufferedInputStream bis = null;
      FileOutputStream fos = null;
      ZipOutputStream zos = null;

      if (!sourceFile.exists())
        System.out.println("待压缩的文件目录：" + sourceFilePath + "不存在.");
      else {
        try {
          File zipFile = new File(zipFilePath + "/" + fileName + ".zip");
          if (zipFile.exists()) {
            System.out.println(zipFilePath + "目录下存在名字为:" + fileName + ".zip" + "打包文件.");
          } else {
            File[] sourceFiles = sourceFile.listFiles();
            if ((null == sourceFiles) || (sourceFiles.length < 1)) {
              System.out.println("待压缩的文件目录：" + sourceFilePath + "里面不存在文件，无需压缩.");
            } else {
              fos = new FileOutputStream(zipFile);
              zos = new ZipOutputStream(new BufferedOutputStream(fos));
              byte[] bufs = new byte[10240];
              for (int i = 0; i < sourceFiles.length; i++)
              {
                ZipEntry zipEntry = new ZipEntry(sourceFiles[i].getName());
                zos.putNextEntry(zipEntry);

                fis = new FileInputStream(sourceFiles[i]);
                bis = new BufferedInputStream(fis, 10240);
                int read = 0;
                while ((read = bis.read(bufs, 0, 10240)) != -1) {
                  zos.write(bufs, 0, read);
                }
              }
              flag = true;
            }
          }
        } catch (FileNotFoundException e) {
          e.printStackTrace();
          throw new RuntimeException(e);
        } catch (IOException e) {
          e.printStackTrace();
          throw new RuntimeException(e);
        }
        finally {
          try {
            if (null != bis) bis.close();
            if (null != zos) zos.close(); 
          }
          catch (IOException e) { e.printStackTrace();
            throw new RuntimeException(e);
          }
        }
      }
      return flag;
    }
}
